90184422387 has 8 divisors (see below), whose sum is σ = 120703106304. Its totient is φ = 59894343368.

The previous prime is 90184422379. The next prime is 90184422397. The reversal of 90184422387 is 78322448109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90184422387 - 2³ = 90184422379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90184422397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57150303 + ... + 57151880.

It is an arithmetic number, because the mean of its divisors is an integer number (15087888288).

Almost surely, 2^90184422387 is an apocalyptic number.

90184422387 is a deficient number, since it is larger than the sum of its proper divisors (30518683917).

90184422387 is a wasteful number, since it uses less digits than its factorization.

90184422387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114302449.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 90184422387 in words is "ninety billion, one hundred eighty-four million, four hundred twenty-two thousand, three hundred eighty-seven".